Device for determining patency



FIG. 1 is a perspective view of a device for determining patency showingthe plunger component moved outward;

FIG. 2 is a perspective view of the device of FIG. 1;

FIG. 3 is a front end elevational view of the device of FIG. 1;

FIG. 4 is a back end elevational view of the device of FIG. 1;

FIG. 5 is a right side elevational view of the device of FIG. 1;

FIG. 6 is a left side elevational view of the device of FIG. 1;

FIG. 7 is a top elevational view of the device of FIG. 1;

FIG. 8 is a bottom elevational view of the device of FIG. 1;

FIG. 9 is a perspective view of the device of FIG. 1 with the plungercomponent moved inward.

FIG. 10 is a perspective view of the device of FIG. 9;

FIG. 11 is a front end elevational view of the device of FIG. 9;

FIG. 12 is a back end elevational view of the device of FIG. 9;

FIG. 13 is a right side elevational view of the device of FIG. 9;

FIG. 14 is a left side elevational view of the device of FIG. 9;

FIG. 15 is a top elevational view of the device of FIG. 9;

FIG. 16 is a bottom elevational view of the device of FIG. 9;

FIG. 17 is a perspective view of the device of FIG. 1 with the plungercomponent moved outward and the flip-latch open;

FIG. 18 a perspective view of the device of FIG. 17;

FIG. 19 is a front end elevational view of the device of FIG. 17;

FIG. 20 is a back end elevational view of the device of FIG. 17;

FIG. 21 is a right side elevational view of the device of FIG. 17;

FIG. 22 is a left side elevational view of the device of FIG. 17;

FIG. 23 is a top elevational view of the device of FIG. 17;

FIG. 24 is a bottom elevational view of the device of FIG. 17;

FIG. 25 is a perspective view of the device of FIG. 1 with the plungercomponent moved inward and the flip-latch open;

FIG. 26 a perspective view of the device of FIG. 25;

FIG. 27 is a front end elevational view of the device of FIG. 25;

FIG. 28 is a back end elevational view of the device of FIG. 25;

FIG. 29 is a right side elevational view of the device of FIG. 25;

FIG. 30 is a left side elevational view of the device of FIG. 25;

FIG. 31 is a top elevational view of the device of FIG. 25; and,

FIG. 32 is a bottom elevational view of the device of FIG. 25.

CLAIM We claim, the ornamental design for a device for determiningpatency, as shown and described.